C# 将图片添加到Excel工作表

我正在尝试将图片添加到我的excel工作表中。这是我的代码：

string AppDirectory = AppDomain.CurrentDomain.BaseDirectory;
Range oRange = (Range)ar.Cells[2, 1];
float Left = (float)((double)oRange.Left);
float Top = (float)((double)oRange.Top);
const float ImageSize = 32;
ar.Shapes.AddPicture(AppDirectory + "ReportIcon" + "\\Bedab-Logo-Blue", Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, Left, Top, (float)1.41, (float)0.4);
                        oRange.RowHeight = ImageSize + 2;

但是这一行代码

ar.Shapes.AddPicture(AppDirectory + "ReportIcon" + "\\Bedab-Logo-Blue", Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoCTrue, Left, Top, (float)1.41, (float)0.4);

引发以下异常：

类型的未处理异常 mscorlib.dll中出现“System.Runtime.InteropServices.COMException”

其他信息：找不到指定的文件

---

注意：路径正确

我认为您缺少文件扩展名，请尝试添加Bedab徽标蓝色扩展名，如.jpg.png等

ar.Shapes.AddPicture(AppDirectory + "ReportIcon" + "\\Bedab-Logo-Blue.JPG",
Microsoft.Office.Core.MsoTriState.msoFalse, 
Microsoft.Office.Core.MsoTriState.msoCTrue, Left, Top, (float)1.41, (float)0.4);

我添加了.JPG，您必须根据所需的文件类型添加